Neopanorpa quadristigma, Wang & Hua, 2018

Wang, Meng & Hua, Bao-Zhen, 2018, High species diversity of the genus Neopanorpa (Mecoptera: Panorpidae) in Yunnan Province, China, Zootaxa 4483 (1) : -

Neopanorpa quadristigma sp. n.

( Figs. 2b , 16–17 )

LSID: urn: lsid: zoobank.org: act: B1CD0CEA-03C5-430D-BEFA-F12D532569A2

Material examined. Holotype ♂, CHINA: Yunnan: Yongde County: Dedang town (24°1′30″N, 99°15′15″E, elev. 1600 m), 24.viii.2014, leg. Ji-Shen Wang, ME 000145 ( NWAFU) . Paratypes 4♂ 6♀, same data as holotype, ME000146–ME000155 ( NWAFU) ; 11♂ 18♀, CHINA: Yunnan: Yongde County: Tangli Mountain (24°01′17″N, 99°14′23″E, elev. 1040–2000 m), 26.vii.2015, leg. Ji-Shen Wang, ME 000156–ME000184 ( NWAFU) ; 1♂ 8♀, CHINA: Yunnan: Cangyuan County: Mengdong town (elev. 1323 m), 06.v.2016, ME000185–ME000193 ( NWAFU) .

Diagnosis. Neopanorpa quadristigma sp. n. can be readily differentiated from its congeners by the following characters: (1) Wings hyaline with grayish markings, bearing unique black rectangular stripe on pterostigma ( Fig. 16a & b ); (2) notal organ very short and stout, extending not beyond third length of T4, with hirsute truncated apex ( Fig. 16e ); (3) Male A7–A8 pale, male genitalia black ( Fig. 16f ); (4) ventral valve of aedeagus bifurcated into hook-like apices, expanded laterad into a broad triangular shape ( Fig. 17a–c ); (5) female genital plate with a broad main plate, axis extending anteriorly beyond main plate for half length, posterior arms spatulate ( Fig. 17e–g ).

Etymology. The specific name is derived from Latin quadri (quadrate) and stigma (stigma), referring to the conspicuous black pterostigma.

Description. Holotype ( Figs. 2b & 16a ).

Head ( Fig. 16c ). Vertex and ocellar triangle black. Rostrum pale yellowish with blackish brown longitudinal stripe along clypeus, abruptly narrowed at base.

Thorax ( Fig. 16d ). Pronotum blackish brown. Mesonotum black at anterior half, extending caudad as diffuse blackish brown median stripe to scutellum, leaving sooty yellowish brown areas adjacent to wing base; metanotum with similar pattern.

Wings ( Fig. 16a ). Wings membrane hyaline with grayish markings; R2 bifurcated. Wing markings faintly indicated by obscure shadow-like markings, with a prominent black stripe on pterostigma. In forewings, apical band indicated by several scattered shadow-like markings; pterostigmal band broad, forked posteriorly into two branches; submedian band long and curved, interrupted in the middle; marginal spot small between Rs and R1. Hindwings only with a black stripe on pterostigma.

Abdomen. T1–T5 grayish black ( Fig. 16a & e ). Male A6 black, A7–A8 pale ( Fig. 16f ). Notal organ stout, only slightly projected caudad, with hirsute truncate apex; T4 membranous anteriorly, bearing hirsute flat post-notal organ ( Fig. 16e ).

Male genitalia. Blackish brown. Hypandrium with basal stalk slightly longer than hypovalves; hypovalves with apical half membranous, extending to median tooth of gonostylus, strongly twisted ventro-mesad at apices, hypandrial processes absent ( Fig. 16g ); in lateral aspect, hypovalves expanded dorsad into broad subtriangular shape ( Fig. 16i ). Epandrium tapering toward apex, with membranous truncate apex ( Fig. 16h ), bearing a pair of broad rectangular epandrial lobes apically ( Fig. 16i ). Gonostylus dark brown, median tooth blunt; basal lobe cuplike, strongly concave ( Fig. 16j & k ). Ventral valve of aedeagus bifurcated and forming hook-like processes at apex, projected ventrad, expanded laterad broadly, ending with a triangular apex; dorsal valves stout, concealed in ventral aspect ( Fig. 17a–c ). Paramere with a long basal stalk, and bifurcated distally into ventral branch and dorsal branch; ventral branch with pointed apex projecting ventro-mesad and overlapping its counterpart mesally; dorsal branch slender and long, elongated dorso-laterad; lateral process greatly expanded, curved ventro-mesad, with pointed apex; dorsal process absent ( Fig. 17a–c ).

Female (Paratype) ( Fig. 16b ). Similar coloration as in the male. T1–T9 blackish brown ( Fig. 16b ). Wing markings more extensive due to complete apical band with one hyaline window anteriorly and one posteriorly in forewings. Subgenital plate broad oval-shaped, with shallow V-shaped emargination at apex ( Fig. 17d ). Genital plate with axis extending anteriorly beyond main plate for its half length, slightly forked proximally; posterior arms spatulate, twisted and abruptly narrowed subbasally ( Fig. 17e–g ).

Measurements. Male (n = 5), forewing length 12.06 ± 0.69 mm, width 3.05 ± 0.16 mm; hindwing length 11.07 ± 0.59 mm, width 2.87 ± 0.14 mm. Female (n = 9), forewing length 11.95 ± 0.65 mm, width 2.98 ± 0.14 mm; hindwing length 10.91 ± 0.66 mm, width 2.76 ± 0.15 mm.

Remarks. The new species resembles N. uncata Zhou, 2000 in male genitalia, but differs from the latter by its extremely short notal organ and wing markings.

Figures

FIGURE 2. Habitat photograph of Neopanorpa in Yunnan (Photo by Ji-Shen Wang). (a) N. triangulata sp. n., male; (b) N. quadristigma sp. n., male; (c) N. nielseni, female; (d) N. tincta sp. n., male; (e) N. brisi, male.

FIGURE 16. Neopanorpa quadristigma sp. n. (a) Male, dorsal view; (b) Female, dorsal view; (c) Head, frontal view; (d) Thorax, dorsal view; (e) Notal organ, dorsal view; (f) A5–A9, lateral view; (g) Male genital bulb, ventral view; (h) Male genital bulb, dorsal view; (i) Male epandrium and hypandrium, lateral view; (j) Gonostylus, ventral view; (k) Gonostylus, dorsal view. For abbreviations see legends of Figure 4. Scale bars: a–b = 5 mm; c–e, g–i = 0.5 mm; f = 1 mm; j–k = 0.25 mm.

FIGURE 17. Neopanorpa quadristigma sp. n. (a)–(c) Male aedeagal complex, ventral, lateral, and dorsal views; (d) Female subgenital plate, ventral view; (e)–(g) Female genital plate, ventral, lateral, and dorsal views. For abbreviations see legends of Figure 5. Scale bars: a–c, e–g = 0.2 mm; d = 0.1 mm.